Alert archive / California / Gale Watches in 2021

Gale Watch 4, NWS San Francisco Bay Area, CA

February 24, 2021

NWS San Francisco Bay Area, CA issued this gale watch at Feb 24, 2021, 2:56 PM PST. It took effect at Feb 25, 2021, 9:00 AM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 24, 2021, 2:56 PM PST (22:56 UTC)
In effect from
Feb 25, 2021, 9:00 AM PST
Expired
Feb 24, 2021, 9:38 PM PST
In force
Issued by
NWS San Francisco Bay Area, CA

The text

As transmitted.

710 
WHUS76 KMTR 242256
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
256 PM PST Wed Feb 24 2021

PZZ570-250500-
/O.CON.KMTR.GL.W.0007.000000T0000Z-210225T0500Z/
Waters from Point Arena to Point Reyes 10-60 NM-
256 PM PST Wed Feb 24 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and seas 
  15 to 17 feet at 15 seconds.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ571-250500-
/O.CON.KMTR.GL.W.0007.000000T0000Z-210225T0500Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
256 PM PST Wed Feb 24 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WHAT...North winds 15 to 25 kt with gusts up to 40 kt and seas 
  13 to 17 feet at 15 seconds.

* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ535-250700-
/O.EXB.KMTR.SC.Y.0033.210225T1700Z-210226T1100Z/
Monterey Bay-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THURSDAY TO 3 AM PST
FRIDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt 
  expected.

* WHERE...Monterey Bay.

* WHEN...From 9 AM Thursday to 3 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ540-250700-
/O.EXT.KMTR.SC.Y.0032.000000T0000Z-210225T1700Z/
/O.NEW.KMTR.GL.A.0004.210225T1700Z-210226T1100Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25 
  kt with gusts up to 35 kt and seas 8 to 13 feet at 14 seconds. 
  For the Gale Watch, northwest winds 25 to 35 kt with gusts up 
  to 40 kt and seas 7 to 11 feet at 14 seconds possible.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...For the Small Craft Advisory, until 9 AM PST Thursday. 
  For the Gale Watch, from Thursday morning through late 
  Thursday night.

* IMPACTS...Strong winds can cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$

PZZ545-250700-
/O.EXT.KMTR.SC.Y.0033.000000T0000Z-210225T1700Z/
/O.NEW.KMTR.GL.A.0004.210225T1700Z-210226T1100Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt
  with gusts up to 35 kt and seas 8 to 10 feet at 14 seconds, 
  resulting in hazardous conditions near harbor entrances. For the
  Gale Watch, northwest winds 20 to 30 kt with gusts up to 40 kt 
  possible.

* WHERE...Coastal Waters from Point Reyes to Pigeon Point 
  California out to 10 nm.

* WHEN...For the Small Craft Advisory, until 9 AM PST Thursday. 
  For the Gale Watch, from Thursday morning through late 
  Thursday night.

* IMPACTS...Strong winds can cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$

PZZ560-250700-
/O.EXT.KMTR.SC.Y.0033.000000T0000Z-210226T1100Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 nm-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 6 to 11 feet at 14 seconds.

* WHERE...Coastal Waters from Pigeon Point to Point Pinos 
  California out to 10 nm.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-250700-
/O.EXT.KMTR.SC.Y.0033.000000T0000Z-210226T1100Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 8 to 10 feet at 15 seconds.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ575-250700-
/O.CON.KMTR.SC.Y.0032.000000T0000Z-210225T2300Z/
/O.NEW.KMTR.GL.A.0004.210225T2300Z-210226T1100Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 35 kt and seas 11 to 16 feet at 15 seconds. 
  For the Gale Watch, northwest winds 25 to 35 kt with gusts up 
  to 45 kt and seas 9 to 13 feet at 14 seconds possible.

* WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM.

* WHEN...For the Small Craft Advisory, until 3 PM PST Thursday. 
  For the Gale Watch, from Thursday afternoon through late 
  Thursday night.

* IMPACTS...Strong winds can cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$

PZZ576-250700-
/O.CON.KMTR.SC.Y.0032.000000T0000Z-210225T2300Z/
/O.NEW.KMTR.GL.A.0004.210225T2300Z-210226T1100Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
THURSDAY...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 30 kt and seas 10 to 15 feet at 15 seconds. 
  For the Gale Watch, northwest winds 20 to 30 kt with gusts up 
  to 40 kt and seas 8 to 12 feet at 14 seconds possible.

* WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 
  60 NM.

* WHEN...For the Small Craft Advisory, until 3 PM PST Thursday. 
  For the Gale Watch, from Thursday afternoon through late 
  Thursday night.

* IMPACTS...Strong winds can cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$

PZZ530-250700-
/O.CON.KMTR.SC.Y.0033.000000T0000Z-210225T1100Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST
THURSDAY...

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt.

* WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San 
  Francisco Bay north of the Bay Bridge.

* WHEN...Until 3 AM PST Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ531-250700-
/O.CON.KMTR.SC.Y.0034.210225T0000Z-210225T1100Z/
San Francisco Bay South of the Bay Bridge-
256 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST
THURSDAY...

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt.

* WHERE...San Francisco Bay South of the Bay Bridge.

* WHEN...Until 3 AM PST Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
1 follow-up statement
713 
WHUS76 KMTR 250538
MWWMTR

URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
938 PM PST Wed Feb 24 2021

PZZ575-251345-
/O.CON.KMTR.SC.Y.0032.000000T0000Z-210225T2300Z/
/O.UPG.KMTR.GL.A.0004.210225T2300Z-210226T1100Z/
/O.NEW.KMTR.GL.W.0008.210225T2300Z-210226T1100Z/
Waters from Pigeon Point to Point Pinos 10-60 NM-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
THURSDAY...
...GALE WARNING IN EFFECT FROM 3 PM THURSDAY TO 3 AM PST FRIDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 35 kt with 
  gusts up to 45 kt and seas 9 to 13 feet at 14 seconds 
  expected. For the Small Craft Advisory, north winds 15 to 25 
  kt with gusts up to 35 kt and seas 9 to 13 feet at 15 seconds.

* WHERE...Waters from Pigeon Point to Point Pinos 10-60 NM.

* WHEN...For the Gale Warning, from 3 PM Thursday to 3 AM PST 
  Friday. For the Small Craft Advisory, until 3 PM PST Thursday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ576-251345-
/O.CON.KMTR.SC.Y.0032.000000T0000Z-210225T2300Z/
/O.UPG.KMTR.GL.A.0004.210225T2300Z-210226T1100Z/
/O.NEW.KMTR.GL.W.0008.210225T2300Z-210226T1100Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
THURSDAY...
...GALE WARNING IN EFFECT FROM 3 PM THURSDAY TO 3 AM PST FRIDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 40 kt and seas 8 to 12 feet at 14 seconds 
  expected. For the Small Craft Advisory, north winds 15 to 25 
  kt with gusts up to 30 kt and seas 10 to 13 feet at 15 seconds.

* WHERE...Waters from Point Pinos to Point Piedras Blancas 10- 
  60 NM.

* WHEN...For the Gale Warning, from 3 PM Thursday to 3 AM PST 
  Friday. For the Small Craft Advisory, until 3 PM PST Thursday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ540-251345-
/O.CON.KMTR.SC.Y.0032.000000T0000Z-210225T1700Z/
/O.UPG.KMTR.GL.A.0004.210225T1700Z-210226T1100Z/
/O.NEW.KMTR.GL.W.0008.210225T1700Z-210226T1100Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 nm-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST
THURSDAY...
...GALE WARNING IN EFFECT FROM 9 AM THURSDAY TO 3 AM PST FRIDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 35 kt with 
  gusts up to 40 kt and seas 7 to 11 feet at 14 seconds 
  expected. For the Small Craft Advisory, northwest winds 10 to 
  20 kt with gusts up to 30 kt and seas 8 to 10 feet at 14 
  seconds.

* WHERE...Coastal Waters from Point Arena to Point Reyes 
  California out to 10 nm.

* WHEN...For the Gale Warning, from 9 AM Thursday to 3 AM PST 
  Friday. For the Small Craft Advisory, until 9 AM PST Thursday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ545-251345-
/O.CON.KMTR.SC.Y.0033.000000T0000Z-210225T1700Z/
/O.UPG.KMTR.GL.A.0004.210225T1700Z-210226T1100Z/
/O.NEW.KMTR.GL.W.0008.210225T1700Z-210226T1100Z/
Coastal Waters from Point Reyes to Pigeon Point California out to
10 nm-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST
THURSDAY...
...GALE WARNING IN EFFECT FROM 9 AM THURSDAY TO 3 AM PST FRIDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 40 kt expected. For the Small Craft Advisory, 
  north winds 15 to 25 kt with gusts up to 40 kt, resulting in 
  hazardous conditions near harbor entrances.

* WHERE...Coastal Waters from Point Reyes to Pigeon Point 
  California out to 10 nm.

* WHEN...For the Gale Warning, from 9 AM Thursday to 3 AM PST 
  Friday. For the Small Craft Advisory, until 9 AM PST Thursday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ570-251345-
/O.EXB.KMTR.SC.Y.0033.000000T0000Z-210226T1400Z/
Waters from Point Arena to Point Reyes 10-60 NM-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM PST FRIDAY...

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt.

* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.

* WHEN...Until 6 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ571-251345-
/O.EXB.KMTR.SC.Y.0033.000000T0000Z-210226T1400Z/
Waters from Point Reyes to Pigeon Point 10-60 NM-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM PST FRIDAY...

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt.

* WHERE...Waters from Point Reyes to Pigeon Point 10-60 NM.

* WHEN...Until 6 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ560-251345-
/O.CON.KMTR.SC.Y.0033.000000T0000Z-210226T1100Z/
Coastal Waters from Pigeon Point to Point Pinos California out to
10 nm-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 6 to 11 feet at 14 seconds.

* WHERE...Coastal Waters from Pigeon Point to Point Pinos 
  California out to 10 nm.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ565-251345-
/O.CON.KMTR.SC.Y.0033.000000T0000Z-210226T1100Z/
Coastal Waters from Point Pinos to Point Piedras Blancas
California out to 10 nm-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 8 to 10 feet at 15 seconds.

* WHERE...Coastal Waters from Point Pinos to Point Piedras 
  Blancas California out to 10 nm.

* WHEN...Until 3 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ530-251100-
/O.CON.KMTR.SC.Y.0033.000000T0000Z-210225T1100Z/
San Pablo Bay, Suisun Bay, the West Delta and  the San Francisco
Bay north of the Bay Bridge-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST
THURSDAY...

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt.

* WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San 
  Francisco Bay north of the Bay Bridge.

* WHEN...Until 3 AM PST Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ531-251100-
/O.CON.KMTR.SC.Y.0034.000000T0000Z-210225T1100Z/
San Francisco Bay South of the Bay Bridge-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST
THURSDAY...

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt.

* WHERE...San Francisco Bay South of the Bay Bridge.

* WHEN...Until 3 AM PST Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ535-251345-
/O.CON.KMTR.SC.Y.0033.210225T1700Z-210226T1100Z/
Monterey Bay-
938 PM PST Wed Feb 24 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THURSDAY TO
3 AM PST FRIDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt 
  expected.

* WHERE...Monterey Bay.

* WHEN...From 9 AM Thursday to 3 AM PST Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sanfrancisco

Nearby

Gale Watches in California, 2021Every gale watch in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.